The idea that one broken window begets many has led to stronger and stronger anti-blight regulations on owners. But how are we doing against graffiti?

Not well, says C.W. Nevius, who notes that taggers are making little old ladies cry on a regular basis now. Among one of the hurdles we face in our battle: "there is a school of thought that believes this is art, not a public nuisance." Ribbity might have something to say about that.